Brother MFC-7240 Basic User's Manual page 81

f
Turn the drum unit gear by hand while
looking at the surface of the drum roller
(1).
1
g
When you have found the mark on the
drum that matches the print sample,
wipe the surface of the drum roller with
a dry cotton swab until the dust or glue
on the surface comes off.
Important
DO NOT clean the surface of the
photosensitive drum with a sharp object.
Routine maintenance
h
Put the toner cartridge back into the
drum unit until it locks into place. If you
put the cartridge in correctly, the green
lock lever will lift automatically.
A
73